APA aipamena

(2006). Tobacco Control Online: Www.tobaccocontrol.com. BMJ Group.

Chicago Style aipamena

Tobacco Control Online: Www.tobaccocontrol.com. BMJ Group, 2006.

MLA aipamena

Tobacco Control Online: Www.tobaccocontrol.com. BMJ Group, 2006.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.